var textarea;
var content;

function doURL(obj)
{
textarea = document.getElementById(obj);
var url = prompt('Enter the URL:','http://');
if(url!=null){
	var scrollTop = textarea.scrollTop;
	var scrollLeft = textarea.scrollLeft;

		if (document.selection) 
				{
					textarea.focus();
					var sel = document.selection.createRange();
					
				if(sel.text==""){
						sel.text = '[url]'  + url + '[/url]';
						} else {
						sel.text = '[url=' + url + ']' + sel.text + '[/url]';
						}			

					//alert(sel.text);
					
				}
	   else 
	    {
			var len = textarea.value.length;
		    var start = textarea.selectionStart;
			var end = textarea.selectionEnd;
			
	        var sel = textarea.value.substring(start, end);
			
			if(sel==""){
					var rep = '[url]' + url + '[/url]';
					} else
					{
					var rep = '[url=' + url + ']' + sel + '[/url]';
					}
		    //alert(sel);
			
	        textarea.value =  textarea.value.substring(0,start) + rep + textarea.value.substring(end,len);
			
				
			textarea.scrollTop = scrollTop;
			textarea.scrollLeft = scrollLeft;
		}
}
}

function doAddTags(tag1,tag2,obj)
{
textarea = document.getElementById(obj);
	// Code for IE
		if (document.selection) 
			{
				textarea.focus();
				var sel = document.selection.createRange();
				//alert(sel.text);
				sel.text = tag1 + sel.text + tag2;
			}
   else 
    {  // Code for Mozilla Firefox
		var len = textarea.value.length;
	    var start = textarea.selectionStart;
		var end = textarea.selectionEnd;
		
		
		var scrollTop = textarea.scrollTop;
		var scrollLeft = textarea.scrollLeft;

		
        var sel = textarea.value.substring(start, end);
	    //alert(sel);
		var rep = tag1 + sel + tag2;
        textarea.value =  textarea.value.substring(0,start) + rep + textarea.value.substring(end,len);
		
		textarea.scrollTop = scrollTop;
		textarea.scrollLeft = scrollLeft;
		
		
	}
}